Cornerstone CPA Professional Corporation

Cornerstone CPA Professional Corporation, founded in 1991, has delivered accounting and financial planning services to the Guelph area and across Ontario for over 30 years. The firm evolved from a home office operation in 2000 to a full-service practice with comprehensive tax, accounting, and financial planning expertise. The practice is led by W. J. Vermeulen (CPA, CFP, qualified as Chartered Accountant in Ontario in 1990) and Gary van der Westhuizen (CPA, qualified as Chartered Accountant in South Africa in 2012 and recognized as fully qualified CPA upon arriving in Canada in 2017). Both partners hold the Certified Financial Planner (CFP) designation, with Vermeulen obtaining it in 2005. Cornerstone offers full-service bookkeeping, accounting, tax preparation, and tax planning for households and owner-managed businesses. Financial planning services are available through two qualified CFP professionals within the practice. App advisory services help businesses implement or recommend accounting software applications including Xero and QuickBooks Online. The firm takes a holistic view of each client's unique situation, providing personalized recommendations without suggesting unnecessary services.